Dual Battery Charger for Gopro AHDBT-301 AHDBT-201 - Compact Portable Design ,Convenient for travelers and business users. - Charge your battery with any USB-enabled Notebook,PC,MAC. - 2 battery slot, can charge two AHDBT-301 AHDBT-201 at the same time. - Quick charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock - Smart LED indicator shows charging status - input voltage: 5V 2A - Output: 4.2V 800mAh - Compatible Battery for :GoPro HD Hero 3 Hero3 AHDBT-301 AHDBT-201 -Size: Approx. 4.1x3.2x2.4cm Package Includes: 1 x Dual Battery Charger 1 x Mini USB Cable Note: USB power not included, you can use any computer USB port or cell phone 5V USB charger We carry many camera accessories like battery, charger, lens cap, lens hood, etc.. Store Name: "Cable Link" 2525 Carling Avenue, Unit 16, Ottawa, K2B7Z2; Tel: 613-680-6188 Inside of Lincoln Fields Shopping Center (Top level, Besides Elevator, Near "Service Canada")